Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

A pioneering method has emerged for manipulating laser beams using sound waves alone. These days, powerful laser beams are essential in scientific research, from particle accelerators to nuclear ...

Debuting on Sky Nature and NOW on Sunday, 25th February, Secret World of Sound with David Attenborough, is a series like no other. The three-part documentary series uses cutting-edge audio technology ...

You can hear sound, of course, but what if you could see it with a laser? That’s what [Goosetopherson] thought about, and thus a new project that you can see in the video below was born. The heart of ...